Can my brother get to 2400 without learning positional chess? He asked.
Ask Me Anything [I am an International Master]

The foundation of chess is tactics…
master the foundation first

The foundation of chess is tactics…
master the foundation first
good answer.

For an expert player, would you recommend maintaining a practical repertoire (easy to recall with minimal upkeep, but not too difficult on your opponent, either) - or a complex repertoire (difficult to recall with greater upkeep, but puts more pressure on your opponent due to imbalanced middle-game positions)?
Ask him